President Trump has been a real-estate tycoon and reality-TV star. Now he’s playing a new role as he oversees TikTok’s fate: ...

After helping President Trump get elected, Elon Musk was poised to dominate the country’s A.I. policies. Then Mr. Altman ...

OpenAI is scouring the U.S. for sites to build a network of huge data centers to power its artificial intelligence technology ...